Magic Squares Wheel Method-Redux Part II

Picture of a wheel

New Variants of Order 5

The wheel method is a means of constructing magic squares by a random access means instead of sequentially like the Loubère and Méziriac methods which has been rewritten in a more simplified form. The method patially fills up a square to form a wheel structure using numbers chosen from a complementary table of order n then randomly fills up the rest of the square with numbers chosen from whatever is left in the complementary table. This paper is a simplification of the original paper taking a more facile approach.

Three 5th order variants have been constructed that differ from the original at the left diagonal. These three variants are the Reverse: 12 → 11 → 13 → 15 → 14, the Forward II: 11 → 14 → 13 → 12 → 15 and the Reverse II: 12 → 15 → 13 → 11 → 14, where these sequences are chosen from the values ½(n2-n+2) to ½(n2+n).

The squares are filled according to the method employed previously first forming the wheel structure and then filling in randomly the "non-spoke" values i.e., white cells chosen from pairs of numbers from the complementary table. Variants 2 and 4 place the complementary pairs across the square, for example {18,8}, and these end up as border squares. Placing the complementary pairs on the same row, again {18,8}, produces the Variant 3 non border square.

Variant 2 Border Square
12 6 22
11 5 23
24 25 13 1 2
3 21 15
4 20 14
 
12 18 6 7 22
11 5 23
24 25 13 1 2
3 21 15
4 8 20 19 14
12 18 6 7 22
1611 5 23 10
24 25 13 1 2
9 3 21 15 17
4 8 20 19 14
Variant 3
11 5 23
14 20 4
25 2 13 24 1
22 6 12
3 21 15
11 19 5 7 23
14 20 4
25 2 13 24 1
22 6 12
3 8 21 18 15
11 19 5 7 23
1714 20 4 10
25 2 13 24 1
9 22 6 12 16
3 8 21 18 15
Variant 4 Border Square
12 6 22
15 21 3
24 1 13 25 2
23 5 11
4 20 14
 
12 18 6 7 22
15 21 3
24 1 13 25 2
23 5 11
4 8 2019 14
12 18 6 7 22
16 15 21 3 10
24 1 13 25 2
9 23 5 11 17
4 8 20 19 14

The complementary 5th order employed for construction of these variants is shown below where the value in the top strand is complementary to the value in the bottom strand:

1 2 3 4 5 6 7 8 9 10 11 12
13
25 24 23 22 21 20 19 18 17 16 15 14

The next page uses variants 2, 3 and 4 of 7x7 squares.
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Copyright © 2020 by Eddie N Gutierrez. E-Mail: enaguti1949@gmail.com